H2 Biology Syllabus 2026 — A-Level (9477) Papers, Topics & Free PDF
19 Oct 2025, 00:00 Z· Last updated 13 Jan 2026
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Q: What does the H2 Biology Syllabus 2026-2027 (9477) cover?
A: Paper weightings, all four Core Ideas plus Extension topics A and B, specimen paper links, and a revision-planning overview for A-Level H2 Biology (SEAB 9477).
Looking for free H2 Biology notes by chapter/topic (plus the printable PDF bundle)? Start here: free H2 Biology notes.
Preparing for H2 Biology under the 9477 syllabus (first exam 2026) requires systematic coverage of four Core Ideas plus two Extension topics, alongside consistent practical-skills rehearsal for Paper 4. Use this guide to align your study schedule with SEAB's expectations.
Download (Official SEAB Syllabus PDF)
Status: SEAB H2 Biology (9477) syllabus last checked 2026-01-13. Scheme of assessment: Paper 1 (1 h, 30 marks, 15 %), Paper 2 (2 h, 90 marks, 35 %), Paper 3 (2 h, 75 marks, 30 %), Paper 4 (2 h 30 min, 50 marks, 20 %).
Exam Format at a Glance
| Paper | Weighting | Duration | Focus |
| Paper 1 | 15 % | 1 h | 30 multiple-choice questions spanning the full syllabus |
| Paper 2 | 35 % | 2 h | Structured questions with stimulus data and multi-part responses |
| Paper 3 | 30 % |
